<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <button class="prev">上一页</button>
    <button class="next">下一页</button>
    <div class="list" style="display: flex;"></div>
</body>

</html>
<script src="./promise-ajax.js"></script>
<script>
    var page = 1    //保存当前页码
    var flag = true
    //点击上一页,获取上一页的表情,渲染表情
    document.querySelector('.prev').onclick = function () {
        //点
        if (page > 1) {

            ajax('get', 'https://yantianfeng.com/api/emotion', { page: --page, count: 10 }).then((data)=> {
                // console.log(data);
                var str = data.emotions.map((item, index) => {
                    return `<div> <img src="${item.url}" /> <div> ${item.title} </div> </div>`
                }).join('')
                //渲染表情
                document.querySelector('.list').innerHTML = str;

            });
        }
    }
    //点击下一页,获取下一页的表情,渲染表情
    document.querySelector('.next').onclick = function () {
        if (page < 4) {
            ajax('get', `https://yantianfeng.com/api/emotion`, { page: ++page, count: 10 }).then((data)=> {
                if(page==1){
                        document.querySelector('.prev').dataset.disabled="true"
                    }
                // console.log(data);
                var str = data.emotions.map((item, index) => {
                    return `<div> <img src="${item.url}" /> <div> ${item.title} </div> </div>`
                }).join('')
                //渲染表情
                document.querySelector('.list').innerHTML = str;
                flag = true
            });
        }
    }
</script>
